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https://doi.org/10.5753/cbie.s...
Article . 2015 . Peer-reviewed
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Tamanho Ótimo de Amostra para Análise do Desempenho de Estudantes em Ambientes Educacionais Ubíquos

Authors: Taffarel Brant-Ribeiro; Renan Cattelan;

Tamanho Ótimo de Amostra para Análise do Desempenho de Estudantes em Ambientes Educacionais Ubíquos

Abstract

O uso da Computacao Ubiqua no escopo academico permite automatizar atividades pedagogicas por meio da criacao de Ambientes Educacionais Ubiquos. Na literatura, pesquisas que estudam tais tecnologias tendem a realizar comparacoes entre usuarios, mas nao averiguam inicialmente se o tamanho das amostras estudadas e capaz de representar as populacoes das quais sao retiradas. Tais analises resultam em informacoes inexatas, devido a falta de precisao experimental dos metodos utilizados nos estudos. Esta pesquisa explorou essa inconsistencia e determinou um tamanho otimo de amostra de 25 individuos para a analise do desempenho de alunos que nao utilizam tecnologias educacionais no cotidiano e de 20 estudantes para turmas que possuem contato com sistemas educacionais durante os semestres letivos. Tais resultados se mostram relevantes para pesquisas que fazem uso de fatores humanos, pois demonstram que amostras com quantidades reduzidas de observacoes sao capazes de compreender grande parte do comportamento das variaveis sob analise.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
bronze